English verb conjugation
SHOULD BITTER

Regular verb: bitter - bittered - bittered

Affirmation

Simple form	V-ing form
I'd bitter you'd bitter he'd bitter we'd bitter you'd bitter they'd bitter	I'd be bittering you'd be bittering he'd be bittering we'd be bittering you'd be bittering they'd be bittering
Perfect	V-ing perfect
I should've bittered you should've bittered he should've bittered we should've bittered you should've bittered they should've bittered	I should've been bittering you should've been bittering he should've been bittering we should've been bittering you should've been bittering they should've been bittering

Negation

Simple form	V-ing form
I shouldn't bitter you shouldn't bitter he shouldn't bitter we shouldn't bitter you shouldn't bitter they shouldn't bitter	I shouldn't be bittering you shouldn't be bittering he shouldn't be bittering we shouldn't be bittering you shouldn't be bittering they shouldn't be bittering
Perfect	V-ing perfect
I shouldn't have bittered you shouldn't have bittered he shouldn't have bittered we shouldn't have bittered you shouldn't have bittered they shouldn't have bittered	I shouldn't have been bittering you shouldn't have been bittering he shouldn't have been bittering we shouldn't have been bittering you shouldn't have been bittering they shouldn't have been bittering

Interrogative form

Simple form	V-ing form
should I bitter? should you bitter? should he bitter? should we bitter? should you bitter? should they bitter?	should I be bittering? should you be bittering? should he be bittering? should we be bittering? should you be bittering? should they be bittering?
Perfect	V-ing perfect
should I have bittered? should you have bittered? should he have bittered? should we have bittered? should you have bittered? should they have bittered?	should I have been bittering? should you have been bittering? should he have been bittering? should we have been bittering? should you have been bittering? should they have been bittering?

Interro-negative form

Simple form	V-ing form
shouldn't I bitter? shouldn't you bitter? shouldn't he bitter? shouldn't we bitter? shouldn't you bitter? shouldn't they bitter?	shouldn't I be bittering? shouldn't you be bittering? shouldn't he be bittering? shouldn't we be bittering? shouldn't you be bittering? shouldn't they be bittering?
Perfect	V-ing perfect
shouldn't I have bittered? shouldn't you have bittered? shouldn't he have bittered? shouldn't we have bittered? shouldn't you have bittered? shouldn't they have bittered?	shouldn't I have been bittering? shouldn't you have been bittering? shouldn't he have been bittering? shouldn't we have been bittering? shouldn't you have been bittering? shouldn't they have been bittering?